| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.samza.storage.kv |
| |
| import scala.collection.JavaConverters._ |
| import java.util |
| import java.nio.file.Path |
| import java.util.Optional |
| |
| import org.apache.samza.checkpoint.CheckpointId |
| |
| /** |
| * A mock key-value store wrapper that handles serialization |
| */ |
| class MockKeyValueStore extends KeyValueStore[String, String] { |
| |
| val kvMap = new java.util.TreeMap[String, String]() |
| |
| override def get(key: String) = kvMap.get(key) |
| |
| override def put(key: String, value: String) { |
| kvMap.put(key, value) |
| } |
| |
| override def putAll(entries: java.util.List[Entry[String, String]]) { |
| for (entry <- entries.asScala) { |
| kvMap.put(entry.getKey, entry.getValue) |
| } |
| } |
| |
| override def delete(key: String) { |
| kvMap.remove(key) |
| } |
| |
| private class MockIterator(val iter: util.Iterator[util.Map.Entry[String, String]]) |
| extends KeyValueIterator[String, String] { |
| |
| override def hasNext = iter.hasNext |
| |
| override def next() = { |
| val entry = iter.next() |
| new Entry(entry.getKey, entry.getValue) |
| } |
| |
| override def remove(): Unit = iter.remove() |
| |
| override def close(): Unit = Unit |
| } |
| |
| override def range(from: String, to: String): KeyValueIterator[String, String] = |
| new MockIterator(kvMap.subMap(from, to).entrySet().iterator()) |
| |
| override def all(): KeyValueIterator[String, String] = |
| new MockIterator(kvMap.entrySet().iterator()) |
| |
| override def flush() {} // no-op |
| |
| override def close() { kvMap.clear() } |
| |
| override def snapshot(from: String, to: String): KeyValueSnapshot[String, String] = { |
| throw new UnsupportedOperationException("iterator() not supported") |
| } |
| |
| override def checkpoint(id: CheckpointId): Optional[Path] = { |
| Optional.empty() |
| } |
| } |